They are odd, aren't they? I don't think there's any real need for them. And I don't find them graceful or attractive. Might have been to get a higher proportion of salt to the liquid...

Out here in SoCal, where margaritas are as common as iced tea once it gets warm, you'd be as likely to get a margarita in a wide bowl champagne glass in a restaurant. Or a 12-oz. red wine balloon shaped glass if you order a grande. For that matter, a highball glass is not uncommon around here in the summer on backyard patios._________________God writes a lot of comedy... the trouble is, he's stuck with so many bad actors who don't know how to play funny. -- Garrison Keillor

From my point of view the two levels glass is a mexican sombrero upsidedown and the shape is not as important as the margarita by itself'do you like it frozen ,on the rock ,salt ,no salt wich kind of tequila .I like mine frozen, no salt ,edge of lime and tequila anejon any glass will do as long as it is at least 16 oz.
"qu'importe le flacon pourvue que l'on ai l'ivresse"

I would think a Martini glass would be a good substitute, elegant shape, plenty of rim to put salt on, and most importantly a stem so one can avoid transmitting body heat to the chilled, frosty nectar,

just don't callit a tequilla-tini!!!! _________________I would like a gin martini, straight up, olives on the side, as dry as my wit, as clean as my conscience.
and... as cold as my heart!!!!

As I have more martini glasses than most humans, I heartily agree with Pesto Man. Margaritas look great in them and I also cringe when I hear "-Tini" applied to drinks other than a martini made properly with gin and vermouth!

"My Martini, just how I like it! Full of Alcohol!"
- Homer Simpson_________________"Life is a banquet, and most poor suckers are starving to death!"
-Auntie Mame